CN210928060U - Variable-frequency constant-current driving power supply - Google Patents
Variable-frequency constant-current driving power supply Download PDFInfo
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- CN210928060U CN210928060U CN201922287318.3U CN201922287318U CN210928060U CN 210928060 U CN210928060 U CN 210928060U CN 201922287318 U CN201922287318 U CN 201922287318U CN 210928060 U CN210928060 U CN 210928060U
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- control chip
- diode
- frequency conversion
- power supply
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Abstract
The utility model discloses a frequency conversion constant current drive power supply relates to the drive power supply field, start unit, power and LED lamp including control chip, LED diode, frequency conversion drive unit, diode, crossing current, the equal electric connection control chip's of LED diode, frequency conversion drive unit and diode input output, the input of LED lamp is connected to frequency conversion drive unit's output electricity, the output electricity connection control chip's of power input, the crossing current starts the unit and is located between control chip and the diode, be connected between frequency conversion drive unit and the crossing current start-up unit. The utility model discloses control chip adopts UCAN integrated chip, can have stronger load capacity, can carry out accurate regulation to output current, and the effectual stability of ensureing cold light LED lamp luminance makes the drive power supply energy consumption low through frequency conversion drive unit, and load capacity increases substantially, can provide stable operating current for many LED lamps simultaneously, has stronger withstand voltage ability.
Description
Technical Field
The utility model relates to a drive power supply field, in particular to frequency conversion constant current drive power supply.
Background
The power circuit used by the existing LED lamp is not only easily affected by external voltage fluctuation, but also has poor load capacity and high energy consumption, and cannot control the output current, so that the LED lamp has unstable brightness, power consumption and short service life, and therefore, the frequency conversion constant current driving power supply is necessary to solve the problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a frequency conversion constant current drive power supply to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a frequency conversion constant current drive power supply, includes control chip, LED diode, frequency conversion drive unit, diode, crossing current start unit, power and LED lamp, the equal electricity of LED diode, frequency conversion drive unit and diode input connects control chip's output, the input of LED lamp is connected to frequency conversion drive unit's output electricity, control chip's input is connected to the output electricity of power, crossing current start unit is located between control chip and the diode, frequency conversion drive unit and crossing current start unit are connected between the unit.
Optionally, an N pole of the LED diode is connected to a VFB pin of the control chip, and a P pole of the LED diode is connected to a VCC pin of the control chip through a resistor.
Optionally, two ends of the diode are respectively connected with an OUT pin and a VREF pin of the control chip to form a field effect transistor trigger circuit.
Optionally, the control chip is a UCAN integrated chip.
The utility model discloses a technological effect and advantage:
the utility model discloses control chip adopts UCAN integrated chip, can have stronger load capacity, can carry out accurate regulation to output current, and the effectual stability of ensureing cold light LED lamp luminance makes the drive power supply energy consumption low through frequency conversion drive unit, and load capacity increases substantially, can provide stable operating current for many LED lamps simultaneously, has stronger withstand voltage ability.
Drawings
Fig. 1 is a schematic diagram of the unit connection of the present invention.
In the figure: 1. a control chip; 2. an LED diode; 3. a variable frequency drive unit; 4. a diode; 5. a cross-flow starting unit; 6. a power source; 7. an LED lamp.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The utility model provides a frequency conversion constant current drive power supply as shown in figure 1, which comprises a control chip 1, an LED diode 2, a frequency conversion drive unit 3, a diode 4, a cross current starting unit 5, a power supply 6 and an LED lamp 7, wherein the N pole of the LED diode 2 is connected with the VFB pin of the control chip 1, the P pole of the LED diode 2 is connected with the VCC pin of the control chip 1 after resistance, two ends of the diode 4 are respectively connected with the OUT pin and the VREF pin of the control chip 1 to form a field effect tube trigger circuit, the control chip 1 adopts a UC3843AN integrated chip, which has stronger load capacity, can accurately regulate output current, effectively ensure the stability of the brightness of a cold light LED lamp, the input ends of the LED diode 2, the frequency conversion drive unit 3 and the diode 4 are electrically connected with the output end of the control chip 1, the output end of the frequency conversion drive unit 3 is electrically connected with the input end, the output end of the power supply 6 is electrically connected with the input end of the control chip 1, the transverse flow starting unit 5 is positioned between the control chip 1 and the diode 4, the frequency conversion driving unit 3 is connected with the transverse flow starting unit 5, the frequency conversion driving unit 3 enables the driving power supply to have low energy consumption, the load capacity is greatly improved, stable working current can be provided for the plurality of LED lamps 7 at the same time, and the LED lamp voltage-withstanding power is high.
This practical theory of operation:
the control chip 1 adopts a UC3843AN integrated chip, so that the control chip has stronger load capacity, can accurately adjust output current, effectively ensures the stability of the brightness of the cold light LED lamp, has low energy consumption of a driving power supply through the frequency conversion driving unit 3, greatly improves the load capacity, can provide stable working current for a plurality of LED lamps 7 simultaneously, and has stronger voltage resistance.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (4)
1. The utility model provides a frequency conversion constant current drive power supply, includes control chip (1), LED diode (2), frequency conversion drive unit (3), diode (4), crossing current start-up unit (5), power (6) and LED lamp (7), its characterized in that: LED diode (2), frequency conversion drive unit (3) and diode (4) input all electricity connect the output of control chip (1), the input of LED lamp (7) is connected to the output electricity of frequency conversion drive unit (3), the input of control chip (1) is connected to the output electricity of power (6), crossing current starts unit (5) and is located between control chip (1) and diode (4), frequency conversion drive unit (3) and crossing current start-up unit (5) between be connected.
2. The variable-frequency constant-current driving power supply according to claim 1, wherein:
the N pole of the LED diode (2) is connected with the VFB pin of the control chip (1), and the P pole of the LED diode (2) is connected with the VCC pin of the control chip (1) after passing through a resistor.
3. The variable-frequency constant-current driving power supply according to claim 1, wherein:
and two ends of the diode (4) are respectively connected with an OUT pin and a VREF pin of the control chip (1) to form a field effect transistor trigger circuit.
4. The variable-frequency constant-current driving power supply according to claim 1, wherein:
the control chip (1) adopts a UC3843AN integrated chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922287318.3U CN210928060U (en) | 2019-12-19 | 2019-12-19 | Variable-frequency constant-current driving power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922287318.3U CN210928060U (en) | 2019-12-19 | 2019-12-19 | Variable-frequency constant-current driving power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210928060U true CN210928060U (en) | 2020-07-03 |
Family
ID=71348772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922287318.3U Expired - Fee Related CN210928060U (en) | 2019-12-19 | 2019-12-19 | Variable-frequency constant-current driving power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210928060U (en) |
-
2019
- 2019-12-19 CN CN201922287318.3U patent/CN210928060U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200703 Termination date: 20211219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |